Home / 30,780.82-46,163.01-8,590.29

Finding the Fourth Proportional to 30,780.82, 46,163.01 and 8,590.29

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Solution

The fourth proportional to 30,780.82, 46,163.01 and 8,590.29 is: 12,883.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,780.82 : 46,163.01 = 8,590.29 : x
  2. Step 2: Convert to fraction form
    30,780.82/46,163.01 = 8,590.29/x
  3. Step 3: Cross multiply
    30,780.82x = 46,163.01 × 8,590.29
  4. Step 4: Simplify right side
    30,780.82x = 396,553,761.94
  5. Step 5: Solve for x
    x = 396,553,761.94/30,780.82
  6. Step 6: Final answer
    x = 12,883.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.